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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Entwicklung neuartiger Scaffolds für das Tissue Engineering mittels Flocktechnologie

Walther, Anja 05 August 2010 (has links)
Flocktechnologie ist eine im Bereich der Textiltechnik angewandte Methode, bei der kurze Fasern nahezu senkrecht auf ein vorher mit Klebstoff beschichtetes Substrat aufgebracht werden. In der vorliegenden Arbeit wurde die elektrostatische Beflockung als Methode zur Herstellung von porösen, dreidimensionalen Scaffolds für das Tissue Engineering von Knorpel und Knochen etabliert. Dieser neuartige Scaffoldtyp wurde eingehend charakterisiert und in Zellversuchen im Hinblick auf seine Biokompatibilität untersucht. Dabei zeigte sich, dass verschiedene Zellen im Scaffold proliferieren und differenzieren können. Die in der Arbeit beschriebenen Flockscaffolds stellen somit eine vielversprechende Matrix für die Therapie von Gelenkknorpeldefekten dar.
22

Factors affecting the mechanical and geometrical properties of electrostatically flocked pure chitosan fiber scaffolds

Tonndorf, Robert, Gossla, Elke, Kocaman, Recep Türkay, Kirsten, Martin, Hund, Rolf-Dieter, Hoffmann, Gerald, Aibibu, Dilbar, Gelinsky, Michael, Cherif, Chokri 05 November 2019 (has links)
The field of articular cartilage tissue engineering has developed rapidly, and chitosan has become a promising material for scaffold fabrication. For this paper, wet-spun biocompatible chitosan filament yarns were converted into short flock fibers and subsequently electrostatically flocked onto a chitosan substrate, resulting in a pure, highly open, porous, and biodegradable chitosan scaffold. Analyzing the wet-spinning of chitosan revealed its advantages and disadvantages with respect to the fabrication of the fiber-based chitosan scaffolds. The scaffolds were prepared using varying processing parameters and were analyzed in regards to their geometrical and mechanical properties. It was found that the pore sizes were adjustable between 65 and 310 µm, and the compressive strength was in the range 13–57 kPa.
23

The Contribution of Agroforestry Systems to Bird Conservation in the Andes

McDermott, Molly E. 21 July 2014 (has links)
No description available.
24

First person theatre : how performative tactics and frameworks (re)emerging in the digital age are forming a new personal-as-political

Nicklin, Hannah January 2014 (has links)
This study sets out to explore first person theatre as a means of opening the individual to the problems of contemporary capitalism and its increasing pervasion of the personal in an era of embeddedness enabled by networked pervasive technology. Firstly setting out key definitions and a theoretical analysis of the problems of being in the digital age in chapter 1, and then setting this against the history of interaction in performance in chapter 2. The study then goes on (in chapters 3-5) to investigate three key aspects of first person performance as personal-as-political; sound and the city, play and games, and interactive theatre. In the final chapter, The Umbrella Project develops a piece of first person theatre as practice, a method of investigation that is vital to a thesis that discusses politics, late capitalism, and the means to resist the message-sending of private interests as fundamentally only to be understood in practice. For this reason, too, chapters 3, 4 and 5 are supported by key case studies discussing other first person theatre practice. By placing the participant at the centre of the world-constituting process of theatre in the hot space between what is and what if this study suggests that first person theatre is able to open the contemporary individual to an inbetween where they might re-see, reflect and react to what is. To imagine and, if wished, act upon a what if. In an age of the disrupted near and far, the vanishing of the interface, of the false rhetoric of choice of personalisation , and the often false rhetoric of agency at the end of the era of broadcast, first person theatre offers the subject a route to individual agency, an understanding of the urban environment as construct, and to their relationship with the subjective other something which this thesis suggests is a personal-as-political practice to rival the Spectacle of late capitalism.
25

The Role of a Pastor: As a Faithful and Authentic Servant of God

Jones, Leo 05 September 2014 (has links)
No description available.

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